Mitsubishi Lancer (4A9 engine). Manual - part 186
MITSUBISHI MULTI COMMUNICATION SYSTEM (MMCS)
CHASSIS ELECTRICAL
54A-406
DIAGNOSIS PROCEDURE
STEP 1. Confirmation in MMCS service mode
Check the items below in the MMCS service mode
(Refer to ).
• Perform "Network/Connect Line Check" in the
MMCS service mode to check that the communi-
cation and wire connection with the GPS are in
good condition.
• Perform "Vehicle Signal Check", and then check
the status of the vehicle speed signal.
• Perform "Sensor Check", and then check the
status of the vehicle speed sensor and the gyro
sensor.
Q: Is the check result normal?
YES (OK for all) :
Go to Step 6.
NO <GPS is not OK> :
Go to Step 2.
NO <The vehicle speed sensor is not OK, or vehicle
speed pulse does not increase after starting from a
standstill> :
Go to Step 3.
NO <Gyro sensor is not OK> :
Go to Step 6.
STEP 2. GPS reception check
(1) Start the multivision display.
(2) Press the (1).
(3) Select (2).
(4) Wait for 5 minutes, and then check whether GPS
signal can be received.
Q: Is the check result normal?
YES :
Go to Step 6.
NO :
Perform Inspection Procedure 7 "GPS
signal cannot be received" (Refer to .), and
then go to Step 6.
STEP 3. Check the speedometer.
Check whether the speedometer works normally.
(Refer to .)
Q: Does the speedometer work normally?
YES :
Go to Step 4.
NO :
Diagnose the combination meter (Refer to
Combination meter
− Troubleshooting ).
AC804201
(1)
AB
AC803907
AB
(2)
AC803908